package com.itheima.reggie.controller;

import com.alibaba.fastjson.JSON;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.ibatis.annotations.Param;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.websocket.server.PathParam;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;


    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request,@RequestBody Employee employee){

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if(emp == null){
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
    /**
     * 员工分页查询
     */
    @GetMapping("/page")
    R<IPage<Employee>> selectPage( Integer page, Integer pageSize,String employeName){

        IPage<Employee> employeeIPage = employeeService.selectPage(page, pageSize,employeName);

        return R.success(employeeIPage);
    }
    /**
     * 保存员工接口
     */
    @PostMapping
    public R<Boolean> saveEmployee(HttpServletRequest request,@RequestBody Employee employee){
        boolean b = employeeService.saveEmployee(request, employee);
        return R.success(b);
    }
    /**
     * 员工编辑
     * 要设定修改人的ID
     * 和修改的时间
     *
     */
    @PutMapping
    public R<Boolean> updateEmployee(HttpServletRequest request,@RequestBody Employee employee){
        Long empId = (Long)request.getSession().getAttribute("employee");
        boolean b = employeeService.updateEmployee(request, employee);
        if (b==false){
            return R.error("编辑失败");
        }
        return R.success(b);
    }
    /**
     * 根据ID查询员工讯息
     */
    @GetMapping("/{id}")
    public R<Employee> selectByID(@PathVariable Long id){
        if (id==null){
            return R.error("没有员工信息");
        }
        Employee employee = employeeService.selectByID(id);
        return R.success(employee);
    }
}
